NECO 2007 Economics · Question 36

The difference between bar charts and histograms is that the former

Options

A.are difference between bars adjoined to each other while the latter are separate bars divided Into sections
B.are line graphs while the latter are rectangular bars
C.are separate bars divided Into sections while the latter are line graphs
D.has bars adjoined to each other while the latter has separate bars
E.has bars separate from each other while the latter has bars adjoined to each other

Answer: E. has bars separate from each other while the latter has bars adjoined to each other

Explanation written with AI and checked against the answer key

Step 1: Analyze the question The question asks how a bar chart (the "former") differs from a histogram (the "latter").

Step 2: Key concepts

Bar chart: Used for discrete or categorical data (e.g. number of students in different subjects, output of different crops). The bars are separate, with gaps between them. The bars can be of equal width, and only the height matters.
Histogram: Used for continuous data grouped into class intervals (e.g. ages 10-19, 20-29). The bars are adjoined, with no gaps, because the classes run continuously. The area of each bar represents the frequency.

Step 3: Test the options

A: Reverses the facts (says bar charts are adjoined), and the wording is poor. Wrong.
B: Bar charts are not line graphs. Wrong.
C: Histograms are not line graphs. Wrong.
D: Says bar charts have adjoined bars and histograms have separate bars. This is the reverse of the truth. Wrong.
E: Says bar charts have bars separate from each other, while histograms have bars adjoined to each other. Correct.

Step 4: Answer

Tip: Think of "Bar = Break" (gaps between bars) and "Histogram = Hugging" (bars touch each other). If a question says "former/latter," check the order carefully. In this question, the former is the bar chart and the latter is the histogram.

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